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Finding the Fourth Proportional to 133,241.58, 183,875.79 and 72,814.77

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Solution

The fourth proportional to 133,241.58, 183,875.79 and 72,814.77 is: 100,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,241.58 : 183,875.79 = 72,814.77 : x
  2. Step 2: Convert to fraction form
    133,241.58/183,875.79 = 72,814.77/x
  3. Step 3: Cross multiply
    133,241.58x = 183,875.79 × 72,814.77
  4. Step 4: Simplify right side
    133,241.58x = 13,388,873,357.42
  5. Step 5: Solve for x
    x = 13,388,873,357.42/133,241.58
  6. Step 6: Final answer
    x = 100,485.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.